In-vehicle screen control methods, devices, vehicles, storage media, and software products

Abstract

This application discloses a method, device, vehicle, storage medium, and program product for controlling an in-vehicle screen. The method includes: determining the current ambient light level and the usage scenario of the in-vehicle screen, where the ambient light level includes driving brightness and / or cabin brightness, and the usage scenario includes driving or entertainment scenarios; determining a target screen brightness based on the ambient light level and a luminance spectrum, where the luminance spectrum indicates the mapping relationship between driving brightness, cabin brightness, and in-vehicle screen brightness; adjusting the in-vehicle screen brightness to the target screen brightness when the usage scenario is driving; and correcting the target screen brightness and adjusting the in-vehicle screen brightness to the corrected target screen brightness when the usage scenario is entertainment. This application improves the control efficiency of in-vehicle screens by fully considering the different display requirements of in-vehicle screens in different usage scenarios.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to an in-vehicle screen control method, device, vehicle, storage medium, and program product. Background Technology

[0002] With the development of vehicle technology, in-vehicle screens have been widely used in vehicles, allowing users to access navigation, entertainment, and other functions, thereby improving the user experience. During use, in-vehicle screens typically require a certain level of brightness for normal display; screens that are too bright or too dim will negatively impact the display's functionality.

[0003] In related technologies, due to the complex driving environment, drivers typically need to actively adjust the brightness of the in-vehicle screen to ensure its normal display. Therefore, the control efficiency of current in-vehicle screens is relatively low. Summary of the Invention

[0004] This application provides a method, device, vehicle, storage medium, and program product for controlling an in-vehicle screen, which can improve the control efficiency of the in-vehicle screen. The technical solution is as follows:

[0005] On the one hand, a method for controlling an in-vehicle screen is provided, the method comprising:

[0006] Determine the current ambient light level and the usage scenario of the in-vehicle screen. The ambient light level includes driving brightness and / or cabin brightness. The driving brightness is used to indicate the brightness when looking forward from the driver's position, and the cabin brightness is used to indicate the brightness when looking at the in-vehicle screen from the center of the cabin. The usage scenario includes driving scenario or entertainment scenario.

[0007] The target screen brightness is determined based on the light intensity and brightness spectrum, wherein the brightness spectrum is used to indicate the mapping relationship between driving brightness, cabin brightness and vehicle screen brightness;

[0008] When the in-vehicle screen is used in a driving scenario, the brightness of the in-vehicle screen is adjusted to the target screen brightness.

[0009] When the in-vehicle screen is used in an entertainment scenario, the brightness of the target screen is corrected, and the brightness of the in-vehicle screen is adjusted to the corrected brightness of the target screen.

[0010] Optionally, correcting the target screen brightness includes:

[0011] Based on the light intensity and the first mapping relationship, a target brightness correction value is determined. The first mapping relationship is used to indicate the mapping relationship between driving brightness, cabin brightness and brightness correction value.

[0012] The target screen brightness is adjusted based on the target brightness correction value.

[0013] Optionally, determining the usage scenario of the in-vehicle screen includes:

[0014] If the in-vehicle screen has a rotation angle and the rotation angle is less than an angle threshold, the usage scenario of the in-vehicle screen is determined to be an entertainment scenario. The angle threshold is used to characterize the rotation angle of the in-vehicle screen when it is facing the driving position.

[0015] When the in-vehicle screen has no rotation angle, or the rotation angle is greater than or equal to the angle threshold, the usage scenario of the in-vehicle screen is determined based on the gear position of the vehicle.

[0016] Optionally, determining the usage scenario of the in-vehicle screen based on the gear position includes:

[0017] If the gear position is not the parking gear, the usage scenario of the in-vehicle screen is determined to be a driving scenario;

[0018] When the gear position is parked, the application identifier corresponding to the application currently displayed on the vehicle screen is obtained; if the application identifier is in the identifier list, the usage scenario of the vehicle screen is determined to be an entertainment scenario; if the application identifier is not in the identifier list, the usage scenario of the vehicle screen is determined to be a driving scenario. The identifier list is used to store the identifiers of at least one application that provides entertainment services.

[0019] Optionally, adjusting the brightness of the vehicle screen to the target screen brightness includes:

[0020] Determine the brightness difference between the current screen brightness of the vehicle screen and the target screen brightness;

[0021] Based on the brightness difference, the current screen brightness, and the second mapping relationship, the target adjustment speed is determined. The second mapping relationship is used to indicate the correspondence between the brightness difference, the current screen brightness, and the adjustment speed.

[0022] Adjust the brightness of the vehicle screen to the target screen brightness according to the target adjustment speed.

[0023] Optionally, after adjusting the brightness of the vehicle screen to the target screen brightness, the method further includes:

[0024] In response to a screen brightness control command triggered by a user within a target duration after the brightness of the vehicle screen is adjusted to the target screen brightness, the brightness of the vehicle screen is adjusted to the reference screen brightness indicated by the screen brightness control command.

[0025] The brightness spectrum is corrected based on the reference screen brightness.

[0026] On the other hand, an in-vehicle screen control device is provided, the device comprising:

[0027] An information determination module is used to determine the current light intensity and the usage scenario of the vehicle screen. The light intensity includes driving brightness and / or cabin brightness. The driving brightness is used to indicate the brightness when looking forward from the driver's position, and the cabin brightness is used to indicate the brightness when looking at the vehicle screen from the center of the cabin. The usage scenario includes driving scenario or entertainment scenario.

[0028] A brightness determination module is used to determine the target screen brightness based on the light brightness and the brightness spectrum, wherein the brightness spectrum is used to indicate the mapping relationship between driving brightness, cabin brightness and vehicle screen brightness;

[0029] A brightness adjustment module is used to adjust the brightness of the vehicle screen to the target screen brightness when the usage scenario of the vehicle screen is a driving scenario.

[0030] The brightness adjustment module is further configured to correct the target screen brightness when the in-vehicle screen is used in an entertainment scenario, and adjust the brightness of the in-vehicle screen to the corrected target screen brightness.

[0031] Optionally, the brightness adjustment module is specifically used for:

[0032] Based on the light intensity and the first mapping relationship, a target brightness correction value is determined. The first mapping relationship is used to indicate the mapping relationship between driving brightness, cabin brightness and brightness correction value.

[0033] The target screen brightness is adjusted based on the target brightness correction value.

[0034] Optionally, the information determination module is specifically used for:

[0035] If the in-vehicle screen has a rotation angle and the rotation angle is less than an angle threshold, the usage scenario of the in-vehicle screen is determined to be an entertainment scenario. The angle threshold is used to characterize the rotation angle of the in-vehicle screen when it is facing the driving position.

[0036] When the in-vehicle screen has no rotation angle, or the rotation angle is greater than or equal to the angle threshold, the usage scenario of the in-vehicle screen is determined based on the gear position of the vehicle.

[0037] Optionally, the information determination module is specifically used for:

[0038] If the gear position is not the parking gear, the usage scenario of the in-vehicle screen is determined to be a driving scenario;

[0039] When the gear position is parked, the application identifier corresponding to the application currently displayed on the vehicle screen is obtained; if the application identifier is in the identifier list, the usage scenario of the vehicle screen is determined to be an entertainment scenario; if the application identifier is not in the identifier list, the usage scenario of the vehicle screen is determined to be a driving scenario. The identifier list is used to store the identifiers of at least one application that provides entertainment services.

[0040] Optionally, the brightness adjustment module is specifically used for:

[0041] Determine the brightness difference between the current screen brightness of the vehicle screen and the target screen brightness;

[0042] Based on the brightness difference, the current screen brightness, and the second mapping relationship, the target adjustment speed is determined. The second mapping relationship is used to indicate the correspondence between the brightness difference, the current screen brightness, and the adjustment speed.

[0043] Adjust the brightness of the vehicle screen to the target screen brightness according to the target adjustment speed.

[0044] Optionally, the brightness determination module is further configured to:

[0045] In response to a screen brightness control command triggered by a user within a target duration after the brightness of the vehicle screen is adjusted to the target screen brightness, the brightness of the vehicle screen is adjusted to the reference screen brightness indicated by the screen brightness control command.

[0046] The brightness spectrum is corrected based on the reference screen brightness.

[0047] On the other hand, a vehicle is provided, the vehicle including a memory and a controller, the memory for storing a computer program, and the controller for executing the computer program stored in the memory to implement the steps of the vehicle screen control method described above.

[0048] On the other hand, a computer-readable storage medium is provided, wherein a computer program is stored therein, and when the computer program is executed by a controller, it implements the steps of the vehicle screen control method described above.

[0049] On the other hand, a computer program product containing instructions is provided, which, when executed on a computer, cause the computer to perform the steps of the vehicle screen control method described above.

[0050] The technical solution provided in this application can bring at least the following beneficial effects:

[0051] When adjusting the brightness of the in-vehicle screen, the system can automatically determine the target screen brightness based on the current ambient light level and luminance spectrum. This allows for automatic adjustment of the screen brightness based on the vehicle's driving and cabin lighting conditions, improving screen control efficiency. Furthermore, the system considers the screen's usage scenario during brightness adjustment, taking into account different needs in driving and entertainment scenarios. When the screen is used in a driving scenario, the brightness is directly adjusted to the target level. Conversely, when used in other scenarios, the target brightness is adjusted to the corrected target level. This ensures that even under the same ambient light conditions, the screen brightness can be adjusted differently based on the usage scenario, fully considering the varying display requirements and further enhancing screen control efficiency. Attached Figure Description

[0052] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0053] Figure 1 This is a schematic diagram of an implementation environment provided in an embodiment of this application;

[0054] Figure 2 This is a flowchart of a vehicle screen control method provided in an embodiment of this application;

[0055] Figure 3 This is a schematic diagram of the structure of an in-vehicle screen control device provided in an embodiment of this application;

[0056] Figure 4 This is a schematic diagram of the structure of a vehicle provided in an embodiment of this application. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0058] Before providing a detailed explanation of the vehicle screen control method provided in the embodiments of this application, the implementation environment involved in the embodiments of this application will be introduced first.

[0059] Please refer to Figure 1 , Figure 1 This is a schematic diagram illustrating an implementation environment according to an exemplary embodiment. The implementation environment includes a sensor 101, a controller 102, and an in-vehicle screen 103.

[0060] Sensor 101 is used to acquire light brightness. For example, sensor 101 may include a brightness sensor disposed in the driver's position facing the front of the vehicle to acquire the brightness when looking at the front of the vehicle from the driver's position; and a brightness sensor disposed in the middle of the cabin facing the vehicle screen to acquire the brightness perceived in the middle of the cabin, that is, the brightness when looking at the vehicle screen from the middle of the cabin.

[0061] The controller 102 is used to control the screen brightness of the vehicle screen. For example, the controller 102 can determine the usage scenario of the vehicle screen and determine the target screen brightness based on the light brightness determined by the sensor 101. Then, based on the determined target screen brightness and the usage scenario of the vehicle screen, the brightness of the vehicle screen is adjusted.

[0062] The vehicle screen 103 is used to display content, such as a vehicle LED (light emitting diode) display screen, to provide the driver with necessary driving information during vehicle operation, such as displaying the vehicle's current speed, surrounding obstacles, etc., and to provide entertainment functions in some scenarios, such as displaying videos and playing music.

[0063] The vehicle screen control method provided in this application embodiment is executed by the aforementioned controller 102. The controller 102 can be a general-purpose CPU (Central Processing Unit), NP (Network Processor), microprocessor, or one or more integrated circuits used to implement the solution of this application, such as ASIC (Application-Specific Integrated Circuit), PLD (Programmable Logic Device), or a combination thereof. The aforementioned PLD can be CPLD (Complex Programmable Logic Device), FPGA (Field-Programmable Gate Array), GAL (Generic Array Logic), or any combination thereof.

[0064] Those skilled in the art should understand that the above-described sensors, controllers, and vehicle screens are merely examples. Other existing or future sensors, controllers, and vehicle screens that are applicable to the embodiments of this application should also be included within the scope of protection of the embodiments of this application, and are hereby incorporated by reference.

[0065] It should be noted that the application scenarios and implementation environments described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the emergence of new application scenarios and the evolution of implementation environments, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0066] The in-vehicle screen control method provided in the embodiments of this application will be explained in detail below.

[0067] Figure 2 This is a flowchart of a vehicle screen control method provided in an embodiment of this application. Please refer to it. Figure 2 The method includes the following steps.

[0068] Step 201: Determine the current ambient light level and the usage scenario of the in-vehicle screen. Ambient light level includes driving brightness and / or cabin brightness. Driving brightness indicates the brightness when looking ahead of the vehicle from the driver's position, and cabin brightness indicates the brightness when looking at the in-vehicle screen from the center of the cabin. Usage scenarios include driving scenarios or entertainment scenarios.

[0069] The usage scenarios for in-vehicle screens can be categorized as follows: Driving scenario: The in-vehicle screen is used to meet the driver's needs for safety, convenient operation, and access to necessary driving information. In this case, the screen primarily provides functions such as navigation display, vehicle status monitoring, and safe driving assistance information. Entertainment scenario: The in-vehicle screen is used to meet the entertainment needs of in-vehicle users. In this case, the screen primarily provides functions such as music playback, video playback, games, and internet browsing.

[0070] Users' brightness requirements for in-vehicle screens vary depending on the usage scenario. For example, when using the screen while driving, the brightness is typically limited to avoid visual glare affecting the driver's perception of the road ahead and thus impacting driving safety. However, when using the screen for entertainment, since driving safety is not an issue, the brightness can be set more flexibly to fully meet the user's experience.

[0071] In some embodiments, if the in-vehicle screen has a rotation angle and the rotation angle is less than an angle threshold, the usage scenario of the in-vehicle screen can be determined as an entertainment scenario, where the angle threshold is used to characterize the rotation angle of the in-vehicle screen when it is facing the driver's position; if the in-vehicle screen does not have a rotation angle, or the rotation angle is greater than or equal to the angle threshold, the usage scenario of the in-vehicle screen can be determined based on the vehicle's gear position.

[0072] The presence of a rotation angle on the in-vehicle screen can be understood as the screen being able to rotate to adjust its orientation. In this embodiment, the rotation angle primarily refers to the screen's ability to rotate horizontally, that is, to rotate around its vertical axis, allowing it to face different directions to meet the usage needs of users in different locations.

[0073] It is understandable that when the rotation angle of the in-vehicle screen changes, its orientation also changes, and different orientations correspond to different users, thus changing the usage scenario. In other words, the usage scenario of the in-vehicle screen changes depending on its orientation. For example, when the in-vehicle screen faces a non-driver, it can be considered primarily used to provide entertainment services for non-drivers, meaning its usage scenario is entertainment. Therefore, in this embodiment, if the in-vehicle screen has a rotation angle, the usage scenario can be determined based on that rotation angle.

[0074] For example, when the in-vehicle screen rotates counterclockwise, the rotation angle gradually decreases, indicating that the in-vehicle screen is rotating towards a non-driving position. When the rotation angle is less than the angle threshold, it is considered that the in-vehicle screen is facing a non-driving position, indicating that the user of the in-vehicle screen is not a driver. Since the in-vehicle screen does not need to meet the driver's needs for safety, convenient operation, and obtaining necessary driving information at this time, the current usage scenario of the in-vehicle screen can be considered as an entertainment scenario.

[0075] The angle threshold can be determined based on actual usage needs. For example, the angle threshold can be the default value set before the vehicle leaves the factory; or, during vehicle use, users can also set or adjust the angle threshold based on actual usage needs to flexibly adjust the judgment conditions for the usage scenarios of the in-vehicle screen.

[0076] It should be noted that even when the in-vehicle screen is facing the driver or is not rotated, the usage scenario of the in-vehicle screen can change depending on the vehicle's operating conditions. For example, the usage scenario will differ whether the vehicle is in motion or parked. Therefore, to ensure the accuracy of determining the in-vehicle screen's usage scenario, when the screen is facing the driver or is not rotated, the vehicle's gear position can be further considered to determine the screen's usage scenario.

[0077] In some scenarios, a vehicle may have multiple in-vehicle screens, such as a first screen facing the driver and a second screen facing the passenger. In these cases, the usage scenario for each screen can be determined separately, and control can be applied to each screen accordingly. For example, since the driver uses the first screen, the second screen in the passenger seat does not meet the driver's needs for safety, convenient operation, or access to necessary driving information. Therefore, the second screen can be assumed to be used for entertainment, and control can be implemented based on the control methods for entertainment scenarios. As for the first screen, its usage scenario can be further determined by considering the vehicle's gear position, allowing for accurate control.

[0078] In some embodiments, when the gear position is not in the parking gear, the usage scenario of the in-vehicle screen is determined to be a driving scenario; when the gear position is in the parking gear, the application identifier corresponding to the application currently displayed on the in-vehicle screen is obtained; if the application identifier is in the identifier list, the usage scenario of the in-vehicle screen is determined to be an entertainment scenario; if the application identifier is not in the identifier list, the usage scenario of the in-vehicle screen is determined to be a driving scenario. The identifier list is used to store the identifiers of at least one application that provides entertainment services.

[0079] If the gear position is not a parking gear, that is, the vehicle's gear position is neutral (N), drive (R), or reverse (D), it indicates that the vehicle is in a driving preparation state or in a driving state, and the current usage scenario of the in-vehicle screen can be considered as a driving scenario.

[0080] If the gear is in Park (P), it indicates that the vehicle is not currently moving. In this case, the usage scenario of the in-vehicle screen can be determined by the type of application currently displayed. If the application is an entertainment program (i.e., its identifier is in the identifier list), then the usage scenario is considered an entertainment scenario. If the application is not an entertainment program, such as a navigation program, then even if the vehicle is in Park, the display of a navigation program indicates that the vehicle is preparing to move, and the usage scenario is considered a driving scenario.

[0081] In some embodiments, the identifier list can be a default identifier list, such as a identifier list pre-installed on the vehicle before it leaves the factory, used to indicate different types of applications. In other embodiments, the identifier list can also be a user-defined identifier list, whereby a user adds application identifiers of multiple applications to the identifier list based on actual usage needs, indicating that the multiple applications are applications used to provide entertainment services.

[0082] Optionally, users can also delete or add application identifiers to the identifier list based on actual usage needs, so that the identifier list can adapt to changes in user needs.

[0083] In some embodiments, the usage scenario of the in-vehicle screen can also be determined based on the user's control commands. For example, if a first control command triggered by the user is received, the usage scenario of the in-vehicle screen is determined to be a driving scenario; if a second control command triggered by the user is received, the usage scenario of the in-vehicle screen is determined to be an entertainment scenario, so as to further improve the flexibility of in-vehicle screen control.

[0084] For example, the first control command is a user-triggered control command to enter the driving mode, such as a voice control command or button control command to enter the driving mode; the second control command can be a user-triggered control command to enter the entertainment mode, such as a voice control command or button control command to enter the entertainment mode.

[0085] Step 202: Determine the target screen brightness based on light intensity and brightness spectrum. The brightness spectrum is used to indicate the mapping relationship between driving brightness, cabin brightness and vehicle screen brightness.

[0086] In some embodiments, the mapping relationship between driving brightness, cabin brightness and in-vehicle screen brightness can be determined based on experimental simulation data, thereby fitting a brightness spectrum.

[0087] The mapping relationship between driving brightness, cabin brightness and vehicle screen brightness can refer to the screen brightness required to achieve normal content display without affecting driving safety, given a fixed driving brightness and cabin brightness.

[0088] Optionally, the form of the brightness map can be flexibly determined based on actual usage requirements. For example, the brightness map can be a three-dimensional map, where the horizontal axis represents the driving brightness, the vertical axis represents the cabin brightness, and the height represents the in-vehicle screen brightness. In this way, given the current driving brightness and cabin brightness, the corresponding target screen brightness can be determined based on the three-dimensional map.

[0089] For example, the brightness map may include a first brightness map and a second brightness map, wherein the first brightness map indicates the mapping relationship between driving brightness and in-vehicle screen brightness, and the second brightness map indicates the mapping relationship between cabin brightness and in-vehicle screen brightness. After determining the current ambient light level, a first in-vehicle screen brightness can be determined based on the current driving brightness and the first brightness map, and a second in-vehicle screen brightness can be determined based on the current cabin brightness and the second brightness map. Furthermore, a target screen brightness can be determined based on the first and second in-vehicle screen brightness. For instance, the average of the first and second in-vehicle screen brightness can be used as the target screen brightness corresponding to the current ambient light level.

[0090] In some embodiments, the light intensity may include only either the driving intensity or the cabin intensity. In this scenario, the method for determining the target screen intensity can be flexibly adjusted based on different forms of the intensity spectrum.

[0091] For example, if the luminance map is a three-dimensional map, the average value of all vehicle screen luminances corresponding to the luminance of the light source can be determined as the target screen luminance. For instance, if the luminance of the light source only includes the cabin luminance, then the vehicle screen luminance corresponding to the cabin luminance under different driving luminance conditions can be determined based on the luminance map, resulting in multiple vehicle screen luminances. The average value of these multiple vehicle screen luminances can then be determined as the target screen luminance corresponding to the current luminance.

[0092] For example, if the luminance spectrum includes a first luminance spectrum and a second luminance spectrum, the target luminance spectrum can be determined based on the luminance spectrum corresponding to the light intensity. For instance, if the light intensity only includes driving intensity, the vehicle screen brightness corresponding to that driving intensity can be determined based on the aforementioned first luminance spectrum, and the vehicle screen brightness corresponding to that driving intensity can be determined as the target screen brightness.

[0093] Step 203: When the in-vehicle screen is used in a driving scenario, adjust the brightness of the in-vehicle screen to the target screen brightness.

[0094] In summary, since the target screen brightness is the brightness required for the in-vehicle screen to display content normally without affecting driving safety, the in-vehicle screen brightness corresponding to the brightness spectrum is determined with consideration of vehicle driving safety. Therefore, when the in-vehicle screen is used in a driving scenario, in order to ensure vehicle driving safety, the brightness of the in-vehicle screen can be directly adjusted to the target screen brightness corresponding to the brightness spectrum.

[0095] In some embodiments, the brightness difference between the current screen brightness and the target screen brightness of the vehicle screen can be determined; based on the brightness difference, the current screen brightness, and a second mapping relationship, a target adjustment speed is determined, wherein the second mapping relationship is used to indicate the correspondence between the brightness difference, the current screen brightness, and the adjustment speed; and the brightness of the vehicle screen is adjusted to the target screen brightness according to the target adjustment speed.

[0096] Considering that the human eye needs time to adapt to changes in light, adjusting too quickly may prevent the eye from adapting to changes in the brightness of the in-vehicle screen, causing visual shock and even harming the user's eye health. Therefore, when adjusting the brightness of the in-vehicle screen, a target adjustment speed can be determined based on the current screen brightness and the brightness difference through a second mapping relationship. This allows for gradual adjustments to the screen brightness based on the target adjustment speed, achieving a smooth transition and giving the human eye sufficient time to adapt, thus protecting the user's eye health.

[0097] This second mapping relationship can be determined based on experimental statistical data, expert experience, and other information. For example, based on actual experimental data, the optimal adjustment speed for the user's visual experience corresponding to the brightness difference and the current screen brightness can be determined, that is, the adjustment speed that best conforms to the change law of the user's pupil, thereby obtaining the mapping relationship between the brightness difference, the current screen brightness, and the adjustment speed.

[0098] In some embodiments, the target adjustment speed can be a constant value. That is, when adjusting the brightness of the vehicle screen, a target adjustment speed is determined based solely on the current screen brightness before adjustment and the brightness difference to be adjusted, and then the brightness of the vehicle screen is adjusted to the target screen brightness based on the target adjustment speed.

[0099] For example, if the target screen brightness is determined to be 100 nits based on the current light, the current screen brightness of the vehicle screen is 70 nits, and the target adjustment speed is determined to be 10 nits / s based on the second mapping relationship, then the brightness of the vehicle screen can be adjusted to 100 nits based on this target adjustment speed.

[0100] In other embodiments, the target adjustment speed can also be a variable value. That is, when adjusting the brightness of the vehicle screen, the target adjustment speed is determined in real time based on the current screen brightness and the brightness difference during the adjustment process, and then the brightness of the vehicle screen is adjusted to the target screen brightness based on the target adjustment speed.

[0101] For example, the target screen brightness is determined to be 100 nits based on the current lighting conditions, the current screen brightness of the vehicle screen is 70 nits, and the target adjustment speed is determined to be 10 nits / s based on the second mapping relationship. The brightness of the vehicle screen is adjusted based on this target adjustment speed. In the next second, the current brightness of the vehicle screen is 80 nits, and the brightness difference is 20 nits. A new target adjustment speed is determined based on the second mapping relationship. Suppose the newly determined target adjustment speed is 7 nits / s, then the brightness of the vehicle screen is adjusted again based on this target adjustment speed until the brightness of the vehicle screen is adjusted to the target screen brightness.

[0102] This allows for varying adjustment speeds to be used to adjust the brightness of the in-vehicle screen, resulting in a smoother adjustment process and improving the user's visual experience.

[0103] Step 204: If the in-vehicle screen is used for entertainment, correct the target screen brightness and adjust the brightness of the in-vehicle screen to the corrected target screen brightness.

[0104] In conclusion, since the target screen brightness determined based on the luminance spectrum takes into account driving safety, the brightness of the in-vehicle screen can be set more flexibly when the usage scenario is entertainment, without having to consider driving safety issues. Therefore, when the in-vehicle screen is used in an entertainment scenario, the target screen brightness can be adjusted to further improve the display effect and enhance the user experience.

[0105] In some embodiments, a target brightness correction value can be determined based on light intensity and a first mapping relationship, wherein the first mapping relationship indicates the mapping relationship between driving brightness, cabin brightness and brightness correction value; and the target screen brightness is corrected based on the target brightness correction value.

[0106] This first mapping relationship can be determined based on experimental statistical data, expert experience, and other information. For example, based on actual experimental data, the optimal display brightness of the vehicle screen corresponding to the current light intensity can be determined. Then, the difference between the optimal display brightness and the target screen brightness corresponding to the current light intensity can be determined as the target brightness correction value, thereby obtaining the mapping relationship between driving brightness, cabin brightness, and brightness correction value.

[0107] The mapping relationship between driving brightness, cabin brightness, and brightness correction value can refer to the adjustment values ​​of driving brightness and cabin brightness on the brightness of the in-vehicle screen when the in-vehicle screen is used in an entertainment scenario.

[0108] In addition, the method for determining the target brightness correction value based on light intensity and the first mapping relationship can be found in the above description of determining the target screen brightness based on light intensity and brightness spectrum, and will not be repeated here.

[0109] In some embodiments, if the vehicle is in motion, even if the in-vehicle screen is used for entertainment, in order to ensure the safety of the vehicle during driving, the target in-vehicle brightness can be further corrected based on the driving brightness, that is, the brightness when looking in front of the vehicle from the driver's position, and the brightness of the in-vehicle screen can be adjusted to the target screen brightness after the secondary correction, so as to avoid the driver's perception of the road environment being affected by the excessive brightness of the in-vehicle screen, thereby affecting driving safety.

[0110] For example, if the vehicle's speed is greater than zero, the vehicle is considered to be in motion. If the rotation angle of the in-vehicle screen is less than an angle threshold, it indicates that the current orientation of the in-vehicle screen is not the driving position, meaning the screen is being used for entertainment. In this case, after correcting the target screen brightness based on the target brightness correction value, a driving brightness correction value can be determined based on the driving brightness and a third mapping relationship. Then, the corrected target screen brightness is further corrected based on this driving brightness correction value, and the in-vehicle screen brightness is adjusted to match the second-corrected target screen brightness. The third mapping relationship indicates the mapping relationship between the driving brightness, the current screen brightness, and the driving brightness correction value. This third mapping relationship can also be determined based on experimental statistics, expert experience, and other information. For instance, the safe display brightness of the in-vehicle screen corresponding to the current driving brightness can be determined based on actual experimental data. The difference between this safe display brightness and the corrected target screen brightness can then be determined as the driving brightness correction value.

[0111] For example, when the vehicle speed is greater than zero, if the rotation angle of the in-vehicle screen is less than an angle threshold, after correcting the target screen brightness based on the target brightness correction value, a second correction can be made based on the brightness threshold. For instance, if the target screen brightness corrected based on the target brightness correction value is greater than the brightness threshold, it is considered that the current brightness of the in-vehicle screen is too high, which may affect the driver's perception of the road surface, and the target screen brightness is then corrected to the brightness threshold.

[0112] Furthermore, the specific forms of the mapping relationships in the embodiments of this application, such as the first, second, and third mapping relationships mentioned above, can be flexibly selected according to actual usage requirements. For example, they can be mapping relationship tables or mapping relationship functions, etc. The embodiments of this application do not limit this.

[0113] In some embodiments, the brightness of the vehicle screen can also be adjusted to the reference screen brightness indicated by the screen brightness control command in response to a screen brightness control command triggered by the user within a target duration after the brightness of the vehicle screen is adjusted to the target screen brightness; and the brightness spectrum can be corrected based on the reference screen brightness.

[0114] After the brightness of the in-vehicle screen is adjusted to the target screen brightness, if the user triggers the screen brightness control command within the target duration, it means that the user is not satisfied with the target screen brightness determined based on the current light brightness. That is, the target screen brightness corresponding to the current light brightness is not the screen brightness required by the user. Therefore, the mapping relationship between the light brightness and the in-vehicle screen brightness can be corrected based on the screen brightness adjusted by the user.

[0115] In some embodiments, correcting the mapping relationship between light intensity and vehicle screen brightness can refer to correcting the vehicle screen brightness corresponding to the current light intensity in the brightness spectrum to the reference screen brightness.

[0116] In other embodiments, considering the high randomness of user brightness adjustments, in order to avoid repeated corrections to the brightness of the in-vehicle screen, the difference between the reference screen brightness and the target screen brightness can be determined, and the target screen brightness can be corrected based on this difference.

[0117] For example, if the difference is greater than zero, it means that the target screen brightness corresponding to the current light intensity in the brightness spectrum is too dark and the target screen brightness corresponding to the current light intensity needs to be increased. The target screen brightness corresponding to the current light intensity in the brightness spectrum can be increased based on the difference. The specific increase method can be determined in combination with actual usage requirements and relevant experimental data.

[0118] For example, half of this difference can be used as a correction value to adjust the in-vehicle screen brightness corresponding to the current light intensity in the brightness spectrum. If the target screen brightness corresponding to the current light intensity in the brightness spectrum is 100 nits, and the reference screen brightness indicated by the screen brightness control command triggered by the user within the target duration is 120 nits, then the in-vehicle screen brightness corresponding to the current light intensity in the brightness spectrum can be corrected to 110 nits.

[0119] In some embodiments, when adjusting the brightness of the vehicle screen to the corrected target screen brightness, the target adjustment speed can also be determined based on the fourth mapping relationship, so that the brightness of the vehicle screen can be adjusted to the corrected target screen brightness according to the target adjustment speed. The specific method for determining the target adjustment speed and the method for adjusting the brightness of the vehicle screen to the corrected target screen brightness can be referred to the above description of the second mapping relationship, which will not be repeated here.

[0120] Optionally, the fourth mapping relationship and the second mapping relationship mentioned above can be the same mapping relationship or different mapping relationships, depending on the actual usage requirements.

[0121] In this embodiment, the target screen brightness is determined based on the current ambient light intensity and a luminance spectrum. This allows for the adjustment of the vehicle screen's brightness to consider both driving and cabin lighting conditions, improving the comprehensiveness of ambient light considerations in determining the target brightness. Furthermore, after determining the target screen brightness, the brightness can be adjusted to different levels based on the vehicle screen's usage scenario. This ensures that the different display requirements of the vehicle screen under various usage scenarios are fully considered when adjusting the screen brightness, improving the control efficiency of the vehicle screen and enhancing the user experience.

[0122] Furthermore, by sensing the rotation angle of the in-vehicle screen, the vehicle's gear status, and the application identifier corresponding to the application currently displayed on the in-vehicle screen, the system can determine the orientation of the in-vehicle screen, the vehicle's driving status, and the type of application displayed on the in-vehicle screen. This allows for the determination of the in-vehicle screen's usage scenario based on the actual usage scenario of the vehicle, thereby improving the accuracy of the in-vehicle screen's usage scenario determination.

[0123] Furthermore, when adjusting the brightness of the in-vehicle screen, the adjustment speed is determined by measuring the current screen brightness and the brightness difference. This specific adjustment speed ensures the brightness adjustment matches the rate of change in the human pupil, preventing visual shock and potential eye damage from excessively rapid adjustments. After adjusting the screen brightness, the system can also respond to user brightness control commands by correcting the brightness spectrum based on the user's active adjustments. This self-learning capability allows the system to adapt to the user's actual brightness needs, further improving the control efficiency of the in-vehicle screen.

[0124] Figure 3 This is a schematic diagram of a vehicle screen control device provided in an embodiment of this application. The device includes: an information determination module 301, a brightness determination module 302, and a brightness adjustment module 303.

[0125] The information determination module 301 is used to determine the current light intensity and the usage scenario of the vehicle screen. The light intensity includes driving brightness and / or cabin brightness. Driving brightness is used to indicate the brightness when looking at the front of the vehicle from the driver's position, and cabin brightness is used to indicate the brightness when looking at the vehicle screen from the center of the cabin. The usage scenario includes driving scenario or entertainment scenario.

[0126] Brightness determination module 302 is used to determine the target screen brightness based on light brightness and brightness spectrum. The brightness spectrum is used to indicate the mapping relationship between driving brightness, cabin brightness and vehicle screen brightness.

[0127] The brightness adjustment module 303 is used to adjust the brightness of the vehicle screen to the target screen brightness when the vehicle screen is used in a driving scenario.

[0128] The brightness adjustment module 303 is also used to correct the target screen brightness when the in-vehicle screen is used in an entertainment scenario, and adjust the brightness of the in-vehicle screen to the corrected target screen brightness.

[0129] Optionally, the brightness adjustment module 303 is specifically used for:

[0130] Based on the light intensity and the first mapping relationship, the target brightness correction value is determined. The first mapping relationship is used to indicate the mapping relationship between the driving brightness, the cabin brightness and the brightness correction value.

[0131] Adjust the target screen brightness based on the target brightness correction value.

[0132] Optionally, the information determination module 301 is specifically used for:

[0133] If the in-vehicle screen has a rotation angle, and the rotation angle is less than the angle threshold, the use scenario of the in-vehicle screen is determined to be an entertainment scenario. The angle threshold is used to characterize the rotation angle of the in-vehicle screen when it is facing the driver's position.

[0134] When the in-vehicle screen has no rotation angle, or the rotation angle is greater than or equal to the angle threshold, the usage scenario of the in-vehicle screen is determined based on the vehicle's gear position.

[0135] Optionally, the information determination module 301 is specifically used for:

[0136] If the gear position is not in the parking position, the usage scenario of the in-vehicle screen is determined to be a driving scenario;

[0137] When the gear is in the parking position, obtain the application identifier corresponding to the application currently displayed on the vehicle screen; if the application identifier is in the identifier list, the usage scenario of the vehicle screen is determined to be an entertainment scenario; if the application identifier is not in the identifier list, the usage scenario of the vehicle screen is determined to be a driving scenario. The identifier list is used to store the identifiers of at least one application that provides entertainment services.

[0138] Optionally, the brightness adjustment module 303 is specifically used for:

[0139] Determine the brightness difference between the current screen brightness and the target screen brightness of the vehicle screen;

[0140] The target adjustment speed is determined based on the brightness difference, the current screen brightness, and the second mapping relationship. The second mapping relationship is used to indicate the correspondence between the brightness difference, the current screen brightness, and the adjustment speed.

[0141] Adjust the speed according to the target and adjust the brightness of the in-vehicle screen to the target screen brightness.

[0142] Optionally, the brightness determination module 302 is also used for:

[0143] In response to a screen brightness control command triggered by the user within a target duration after the brightness of the in-vehicle screen is adjusted to the target screen brightness, the brightness of the in-vehicle screen is adjusted to the reference screen brightness indicated by the screen brightness control command.

[0144] The luminance spectrum is corrected based on the reference screen brightness.

[0145] In this embodiment, the target screen brightness is determined based on the current ambient light intensity and a luminance spectrum. This allows for the adjustment of the vehicle screen's brightness to consider both driving and cabin lighting conditions, improving the comprehensiveness of ambient light considerations in determining the target brightness. Furthermore, after determining the target screen brightness, the brightness can be adjusted to different levels based on the vehicle screen's usage scenario. This ensures that the different display requirements of the vehicle screen under various usage scenarios are fully considered when adjusting the screen brightness, improving the control efficiency of the vehicle screen and enhancing the user experience.

[0146] Furthermore, by sensing the rotation angle of the in-vehicle screen, the vehicle's gear status, and the application identifier corresponding to the application currently displayed on the in-vehicle screen, the system can determine the orientation of the in-vehicle screen, the vehicle's driving status, and the type of application displayed on the in-vehicle screen. This allows for the determination of the in-vehicle screen's usage scenario based on the actual usage scenario of the vehicle, thereby improving the accuracy of the in-vehicle screen's usage scenario determination.

[0147] Furthermore, when adjusting the brightness of the in-vehicle screen, the adjustment speed is determined by measuring the current screen brightness and the brightness difference. This specific adjustment speed ensures the brightness adjustment matches the rate of change in the human pupil, preventing visual shock and potential eye damage from excessively rapid adjustments. After adjusting the screen brightness, the system can also respond to user brightness control commands by correcting the brightness spectrum based on the user's active adjustments. This self-learning capability allows the system to adapt to the user's actual brightness needs, further improving the control efficiency of the in-vehicle screen.

[0148] It should be noted that the vehicle screen control device provided in the above embodiments is only illustrated by the division of the above functional modules when implementing vehicle screen control. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the vehicle screen control device and the vehicle screen control method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process can be found in the method embodiments, which will not be repeated here.

[0149] Figure 4 This is a structural block diagram of a vehicle 4 provided in an embodiment of this application. Typically, the vehicle 4 includes a controller 41 and a memory 42.

[0150] The controller 41 may include one or more processing cores, such as a quad-core processor. The controller 41 may be implemented using at least one hardware form selected from DSP (Digital Signal Processing), FPGA (Field Programmable Gate Array), and PLA (Programmable Logic Array). The controller 41 may also include a main processor and a coprocessor. The main processor, also known as a CPU (Central Processing Unit), is used to process data in the wake-up state; the coprocessor is a low-power processor used to process data in the standby state. In some embodiments, the controller 41 may integrate a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content to be displayed on the screen. In some embodiments, the controller 41 may also include an AI (Artificial Intelligence) processor, which is used to handle computational operations related to machine learning.

[0151] The memory 42 may include one or more computer-readable storage media, which may be non-transitory. The memory 42 may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash memory devices. In some embodiments, the non-transitory computer-readable storage media in the memory 42 are used to store at least one instruction, which is executed by the controller 41 to implement the in-vehicle screen control method provided in the method embodiments of this application.

[0152] In some embodiments, vehicle 4 may also optionally include: a peripheral device interface 43 and at least one peripheral device. The controller 41, memory 42, and peripheral device interface 43 can be connected via a bus or signal line. Each peripheral device can be connected to peripheral device interface 43 via a bus, signal line, or circuit board. Specifically, the peripheral device includes at least one of: radio frequency circuitry 44, display screen 45, audio circuitry 46, and power supply 47.

[0153] Peripheral device interface 43 can be used to connect at least one I / O (Input / Output) related peripheral device to controller 41 and memory 42. In some embodiments, controller 41, memory 42 and peripheral device interface 43 are integrated on the same chip or circuit board; in some other embodiments, any one or two of controller 41, memory 42 and peripheral device interface 43 can be implemented on separate chips or circuit boards, which is not limited in this embodiment.

[0154] The radio frequency (RF) circuit 44 is used to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The RF circuit 44 communicates with communication networks and other communication devices via electromagnetic signals. The RF circuit 44 converts electrical signals into electromagnetic signals for transmission, or converts received electromagnetic signals back into electrical signals. Optionally, the RF circuit 44 includes: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a user identity module card, etc. The RF circuit 44 can communicate with other terminals through at least one wireless communication protocol. This wireless communication protocol includes, but is not limited to: the World Wide Web, metropolitan area networks, intranets, various generations of mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks, and / or WiFi (Wireless Fidelity) networks. In some embodiments, the RF circuit 44 may also include circuitry related to NFC (Near Field Communication), which is not limited in this application embodiment.

[0155] Display screen 45 is used to display a UI (User Interface). This UI may include graphics, text, icons, videos, and any combination thereof. When display screen 45 is a touch display screen, it also has the ability to collect touch signals on or above its surface. These touch signals can be input as control signals to controller 41 for processing. In this case, display screen 45 can also be used to provide virtual buttons and / or a virtual keyboard, also known as soft buttons and / or a soft keyboard. In some embodiments, there may be one display screen 45; in other embodiments, there may be at least two display screens 45, respectively disposed at different locations on vehicle 4; in still other embodiments, display screen 45 may be a flexible display screen, disposed on a curved or folded surface of vehicle 4. Furthermore, display screen 45 may be configured as a non-rectangular, irregular shape, i.e., a non-rectangular screen. Display screen 45 may be made of materials such as LCD (Liquid Crystal Display) or OLED (Organic Light-Emitting Diode).

[0156] The audio circuit 46 may include a microphone and a speaker. The microphone is used to collect sound waves from the user and the environment, converting them into electrical signals that are input to the controller 41 for processing, or to the radio frequency circuit 44 for voice communication. For stereo sound acquisition or noise reduction purposes, multiple microphones may be used, positioned at different locations within the vehicle 4. The microphone may also be an array microphone or an omnidirectional microphone. The speaker is used to convert electrical signals from the controller 41 or the radio frequency circuit 44 into sound waves. The speaker may be a conventional diaphragm speaker or a piezoelectric ceramic speaker. When the speaker is a piezoelectric ceramic speaker, it can convert electrical signals not only into audible sound waves but also into inaudible sound waves for purposes such as distance measurement. In some embodiments, the audio circuit 46 may also include a headphone jack.

[0157] Power source 47 is used to supply power to the various components in vehicle 4. Power source 47 can be alternating current, direct current, a disposable battery, or a rechargeable battery. When power source 47 includes a rechargeable battery, the rechargeable battery can be a wired rechargeable battery or a wireless rechargeable battery. A wired rechargeable battery is a battery that is charged via a wired line, while a wireless rechargeable battery is a battery that is charged via a wireless coil. The rechargeable battery can also be used to support fast charging technology.

[0158] In some embodiments, the vehicle 4 further includes one or more sensors 48. The one or more sensors 48 include, but are not limited to, a gyroscope sensor 481 and an optical sensor 482.

[0159] The gyroscope sensor 481 can detect the orientation and rotation angle of the display screen 45. Based on the data collected by the gyroscope sensor 481, the controller 41 can realize motion sensing of the display screen 45 (such as determining the usage scenario of the display screen based on the user's tilt operation).

[0160] Optical sensor 482 is used to collect ambient light intensity. In one embodiment, controller 41 can control the display brightness of display screen 45 based on the ambient light intensity collected by optical sensor 482. Specifically, when the ambient light intensity is high, the display brightness of display screen 45 is increased; when the ambient light intensity is low, the display brightness of display screen 45 is decreased.

[0161] Those skilled in the art will understand that Figure 4 The structure shown does not constitute a limitation on vehicle 4, and may include more or fewer components than shown, or combine certain components, or use different component arrangements.

[0162] In some embodiments, a computer-readable storage medium is also provided, which stores a computer program that, when executed by a controller, implements the steps of the vehicle screen control method described above. For example, the computer-readable storage medium may be a ROM, RAM, CD-ROM, magnetic tape, floppy disk, or optical data storage device.

[0163] It is worth noting that the computer-readable storage medium mentioned in the embodiments of this application can be a non-volatile storage medium, in other words, it can be a non-transient storage medium.

[0164] It should be understood that all or part of the steps of the above embodiments can be implemented by software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented wholly or partially in the form of a computer program product. The computer program product includes one or more computer instructions. The computer instructions can be stored in the above-described computer-readable storage medium.

[0165] That is, in some embodiments, a computer program product containing instructions is also provided, which, when run on a computer, causes the computer to perform the steps of the vehicle screen control method described above.

[0166] It should be understood that "at least one" as mentioned herein refers to one or more, and "multiple" refers to two or more. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B; "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. In addition, in order to clearly describe the technical solutions of the embodiments of this application, the terms "first," "second," etc., are used in the embodiments of this application to distinguish identical or similar items with substantially the same function and effect. Those skilled in the art will understand that the terms "first," "second," etc., do not limit the quantity or execution order, and the terms "first," "second," etc., are not necessarily different.

[0167] It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, data stored, data displayed, etc.) and signals involved in the embodiments of this application are all authorized by the user or fully authorized by all parties, and the collection, use and processing of related data must comply with the relevant laws, regulations and standards of the relevant countries and regions.

[0168] The above descriptions are embodiments provided in this application and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for controlling an in-vehicle screen, characterized in that, The method includes: The current ambient light level and the usage scenario of the in-vehicle screen are determined. The ambient light level includes driving brightness and / or cabin brightness. The driving brightness indicates the brightness when looking ahead from the driver's position, and the cabin brightness indicates the brightness when looking at the in-vehicle screen from the center of the cabin. The usage scenario includes driving scenarios or entertainment scenarios. Determining the usage scenario of the in-vehicle screen includes: if the in-vehicle screen has a rotation angle and the rotation angle is less than an angle threshold, determining the usage scenario of the in-vehicle screen as an entertainment scenario, where the angle threshold characterizes the rotation angle of the in-vehicle screen when facing the driver's position; if the in-vehicle screen does not have a rotation angle, or the usage scenario is determined as an entertainment scenario. When the rotation angle is greater than or equal to the angle threshold, the usage scenario of the in-vehicle screen is determined based on the vehicle's gear position; wherein, when the gear position is not a parking gear, the usage scenario of the in-vehicle screen is determined to be a driving scenario; when the gear position is a parking gear, the application identifier corresponding to the application currently displayed on the in-vehicle screen is obtained; if the application identifier is in the identifier list, the usage scenario of the in-vehicle screen is determined to be an entertainment scenario; if the application identifier is not in the identifier list, the usage scenario of the in-vehicle screen is determined to be a driving scenario, wherein the identifier list is used to store the identifiers of at least one application providing entertainment services. The target screen brightness is determined based on the light intensity and brightness spectrum, wherein the brightness spectrum is used to indicate the mapping relationship between driving brightness, cabin brightness and vehicle screen brightness; When the in-vehicle screen is used in a driving scenario, the brightness of the in-vehicle screen is adjusted to the target screen brightness. When the in-vehicle screen is used in an entertainment scenario, the brightness of the target screen is corrected, and the brightness of the in-vehicle screen is adjusted to the corrected brightness of the target screen.

2. The method as described in claim 1, characterized in that, The correction of the target screen brightness includes: Based on the light intensity and the first mapping relationship, a target brightness correction value is determined. The first mapping relationship is used to indicate the mapping relationship between driving brightness, cabin brightness and brightness correction value. The target screen brightness is adjusted based on the target brightness correction value.

3. The method as described in claim 1, characterized in that, Adjusting the brightness of the vehicle screen to the target screen brightness includes: Determine the brightness difference between the current screen brightness of the vehicle screen and the target screen brightness; Based on the brightness difference, the current screen brightness, and the second mapping relationship, the target adjustment speed is determined. The second mapping relationship is used to indicate the correspondence between the brightness difference, the current screen brightness, and the adjustment speed. Adjust the brightness of the vehicle screen to the target screen brightness according to the target adjustment speed.

4. The method according to any one of claims 1-3, characterized in that, After adjusting the brightness of the vehicle screen to the target screen brightness, the method further includes: In response to a screen brightness control command triggered by a user within a target duration after the brightness of the vehicle screen is adjusted to the target screen brightness, the brightness of the vehicle screen is adjusted to the reference screen brightness indicated by the screen brightness control command. The brightness spectrum is corrected based on the reference screen brightness.

5. A vehicle-mounted screen control device, characterized in that, The device includes: An information determination module is used to determine the current ambient light level and the usage scenario of the in-vehicle screen. The ambient light level includes driving brightness and / or cabin brightness. The driving brightness indicates the brightness when viewed from the driver's position towards the front of the vehicle, and the cabin brightness indicates the brightness when viewed from the center of the cabin towards the in-vehicle screen. The usage scenario includes a driving scenario or an entertainment scenario. Specifically, the information determination module is used to: determine that the usage scenario of the in-vehicle screen is an entertainment scenario when the in-vehicle screen has a rotation angle, and the rotation angle is less than an angle threshold. The angle threshold characterizes the rotation angle of the in-vehicle screen when it faces the driver's position; and determine that the usage scenario is an entertainment scenario when the in-vehicle screen does not have a rotation angle. If the rotation angle is greater than or equal to the angle threshold, the usage scenario of the in-vehicle screen is determined based on the vehicle's gear position. Specifically, if the gear position is not a parking gear, the usage scenario of the in-vehicle screen is determined to be a driving scenario. If the gear position is a parking gear, the application identifier corresponding to the application currently displayed on the in-vehicle screen is obtained. If the application identifier is in the identifier list, the usage scenario of the in-vehicle screen is determined to be an entertainment scenario; if the application identifier is not in the identifier list, the usage scenario of the in-vehicle screen is determined to be a driving scenario. The identifier list is used to store the identifiers of at least one application providing entertainment services. A brightness determination module is used to determine the target screen brightness based on the light brightness and the brightness spectrum, wherein the brightness spectrum is used to indicate the mapping relationship between driving brightness, cabin brightness and vehicle screen brightness; A brightness adjustment module is used to adjust the brightness of the vehicle screen to the target screen brightness when the usage scenario of the vehicle screen is a driving scenario. The brightness adjustment module is further configured to correct the target screen brightness when the in-vehicle screen is used in an entertainment scenario, and adjust the brightness of the in-vehicle screen to the corrected target screen brightness.

6. A vehicle, characterized in that, The vehicle includes a memory and a controller, the memory being used to store a computer program, and the controller being used to execute the computer program stored in the memory to perform the steps of the method described in any one of claims 1 to 4.

7. A computer-readable storage medium, characterized in that, The storage medium stores a computer program, which, when executed by the controller, implements the steps of the method described in any one of claims 1 to 4.

8. A computer program product comprising instructions that, when executed on a computer, cause the computer to perform the steps of the method described in any one of claims 1 to 4.

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